Mash-machine



(No Model.)

Patented'June 4, 1889..

fzl.. Il

R. GARIGH. MASH MACHINE.

N. PETERS, Phmmhugnphar. wammmn. blc.

(Vif/79.5565.'

UNITED STATES PATENT OFFICE.

ROBERT GARICH, OF CHICAGO, ILLINOIS.`

MASH-MACHINE.

SPECIFICATION forming part of Letters Patent No. 404,532, dated J une 4, 1889.

Application filed January 23, 1889. Serial No. 297,317. (No model.)

T0 all whom it may concern/ Be it known that I, ROBERT GARICH, of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Mash-Machin es, of which the following is a f ull, clear, and exact description, reference being had to the accompanying drawings, forming a part of this specification, in which- Figure l is a central vertical sectional view of a mash-machine embodying my improvements. Fig. 2 is a transverse sectional view of the shaft, taken upon the line m Fig. l. Fig. 3 is a like view upon the line y y, Fig. l; and Fig. 4 is a central vertical sectional view, in detail, of a portion of the machine, Showing the parts in a reverse position from that .Shown in Fig. l.

Like letters of reference in the different figures indicate like parts.

As is well known, inwpreparing the mash in the manufacture of beer the malt is placed in the tub and thoroughly agitated with hot water until the whole becomes a glutinous mass and the water becomes thoroughly impregnated with the sugar and other beer-making elements of the malt, when itis drawn off and used for making beer, while the grains or residue remain as a solid,heavy, pulpy mass, which it is necessary to remove before a new mash can be prepared in the tub. Machines have been constructed having revolving` shovels or agitators and Scrapers for removing this mass of residue from the tub by scraping and agitating it over an opening; but no means have been employed for raising and lowering the Scrapers and shovels while in operation,

or so that a portion only of the mass may be agitated at the beginning and the action upon the body increased until the whole is stirred up. Moreover, Said residue is so heavy and solid after having become settled that the machinery heretofore used not only requires great expenditure of power to drive it, but is frequently broken in the attempt.

The object of my invention is to overcome this objection and to provide means for rais ing and lowering the entire agitating mechanism at will and While it iS in operation, so that the power required to drive the machine may be lessened and the chances of breakage diminished, while its efliciency is increased, all of which is hereinafter more particularly described and claimed.

.Referring to the drawings, A represents an ordinary mash-tub having the usual false perforated bottom B, a secondary tight bottom C, valved pipe b, for removing the liquid from the mash, and an opening D for the removal v of the grains. Mounted in a suitable bearing e, supported in a frame-work at the top of the tub, and supported within a step e at the bottom, is a vertical shaft E, which is driven by means of a gear e2 at the top from any Suitable source of power.

F is a sleeve loosely mounted upon the shaft E, but prevented from rotating thereon by means of a spline f. Rigidly attached to the sleeve F is a radial arm G, which is provided with rigid depending arms g g. A shaft H has one of its bearings in the lower end of the arm g, while the other is in a sleeve h', which is rigidly attached to the sleeve F. A Secondaryshaft J' is rigidly attached to the arm g', and the sleeve j secured in like manner to the sleeve F. Rigid arms j', having Scrapers y2 i2 upon their lower ends,'are attached to the shaft J, so that when the sleeve F is lowered to its utmost extremity and rotated the Scrapers j? are adapted to scrape the false bottom B or to agitate the mash material at any point to which they may be raised. Upon the shaft Il, I secure arms h2, having shovels h3 thereon, which agitate the material in the tub aS the shaft H is rotated.

Extending through the bottom of the vat and attached thereto, or to any Suitable framework or foundation, is a cylinder K, within which I place a loose pi ston K through which the shaft E is extended. A pipe kis connected with the bottom of the cylinder K and communicates with either a water or steam service pipe k (whichever may be desired, but preferably the latter) and a waste or exhaustpipe k2 by means of a two-way valve k3, by which the water or Steam may be directed into the cylinder K, as shown in Fig. l, or allowed to escape therefrom, as in Fig. 4. Fitted loosely upon the outside of the cylinder K is a sliding Sleeve L, Figs. l and 3,which is prevented from turning thereon by means of ribs ZZ, which t into grooves formed in said sleeve,

IOO

as shown in Fig. Preferably cast upon the top of the sleeve is a gear L into which meshes a gear 7L, rigidly attached to the shaft 1I. Upon the admission of water to the cylinder K the piston K is raised, and with it the sleeve L and the sleeve l?, with the respective shafts and mechanism attach ed thereto. Upon turn ing the valve L5 it may be lowered to any extent desired until the serapers 'i2 reach the bottom of the tub. Thus it is obvious that while the shaft E is being rotated all of the agitating and scraping mechanism may be in full operation and may be raised or lowered or retained at any desired elevation, which cannot be accomplished under the old constructions.

In `lieu of the sleeve L and ribs Z for preventing the gear L from revolving', the piston k may be bored to receive bolts m m, Fig. 4, which pass through the'bottom cylinder-head andlooselyinto said bores. These'may serve, also, to limit the downward `movement of the piston. rlhe upper end of the piston is provided with teeth mfm, which are arranged to `fit into corresponding notches in the gear L', v

Having thus described my invention, I claiml. In a mashsmachine, the combination, with agitators arranged to rotate upon vertical and horizontal axes, respectively, of a single driv-` ing-shaft, a cylinder and piston in operativel connection with said agitators and shaft, and meansi'or lowering and raising said piston by hydraulic power, whereby said agitators `may be positively and simultaneously rotated upolr vertical, and `horizontal axes, respectively, and raised and lowered while in operation, sul` stantially as shown and described.

2. In a mash-machine, the con'ibination of a cylinder and piston, means for reciprocating said piston, a vertical shaft passin g through the axis of said cylinder and piston, anon-rotatin g gear connected with said piston, a slidin g sleeve splined to said shaft above said piston, a horizontal shaft radiating from said vertical shaft and having shovels thereon and a gear arranged to mesh int-o said non-rotating gear, a secondary radial shaft having Scrapers depending from it, and means for driving said vertical shaft, substantially as shown and described.

3. The combination, in a mash-machine, of a vertical driving-shaft, a source of power, a sleeve loosely splined to said shaft, agitators, substantially as specified, attached to said sleeve, a cylinder and piston inoperative connection with said sleeve,and meansiforfactuating said cylinder, substantially as specified.

4L. The combination, in a mash-rnacliine,iof a tub, vertical shaft E, a sleeve loosely splined thereon, arm G, having depen dingpartg,hori zontal shaft II, a hydrauliccylinder and `piston, means `for admitting water thereto, :nonrevolving gearL, in operative connection with said piston, and gear 71;l in engagement therewith.

In testimony whereof I have signed `this specification, in the presence oi' twosubscribing witnesses, this 3d day of January, 188).

ROBERT GARIGII'.

Witnesses:

D. 1I. FLETCHER, J. HALPENNY. 

